<div id ="left">
{% for stack in left %}
{% include "normalstack.html" with stack=stack %}
{% endfor %}
</div>

<div id="center">
{% for stack in central %}
{% include "centralstack.html" with stack=stack %}
{% endfor %}
</div>

<div id="right">
{% for stack in right %}
{% include "normalstack.html" with stack=stack %}
{% endfor %}
</div>

<div style="clear:both"></div>